cou·ri·er /ˈkʊriɚ/
  送快信的,急差,旅行從僕居里
  Cou·ri·er n.
  1. A messenger sent with haste to convey letters or dispatches, usually on public business.
     The wary Bassa . . . by speedy couriers, advertised Solyman of the enemy's purpose.   --Knolles.
  2. An attendant on travelers, whose business it is to make arrangements for their convenience at hotels and on the way.
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  courier
       n : a person who carries a message [syn: messenger]